Two-Piece Round Toilet with 17.5 inch ADA Comfort Chair Height Seat17. 5" ADA chair height seat for enhanced bathroom comfort 1. 28 gallons per flush saves water without diminished performance Soft close seat ensures low noise operation and reduces wear 360 jet siphon flushing system effectively removes dirt No clogs or leaks thanks to Map 1000g powerful flushing High temperature fired ceramic ensures superior durability Stain resistant glazed surface makes cleaning a breeze 12" rough in is compatible with most